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8. COMMODITIES HELD BY BROKER (Details 1) - USD ($)
3 Months Ended 9 Months Ended
Jul. 31, 2016
Jul. 31, 2015
Jul. 31, 2016
Jul. 31, 2015
Commodities Held By Broker Details 1        
Gross realized gains $ 681,200 $ 293,439 $ 1,247,113 $ 991,706
Gross realized losses (23,379) (175,280) (924,507) (6,415,825)
Unrealized gains (losses) (97,521) (481,433) 591,566 8,263
Total $ 560,300 $ (363,274) $ 914,172 $ (5,415,856)